<template>
  <div class="user-info-head" @click="editCropper()">
    <img :src="options.img" title="点击上传头像" class="img-circle img-lg" />
    <el-dialog v-model="open" :title="title" width="800px" append-to-body @opened="modalOpened" @close="closeDialog">
      <el-row>
        <el-col :xs="24" :md="12" :style="{ height: '350px' }">
          <vue-cropper
            v-if="visible"
            ref="cropperRef"
            :img="options.img"
            :info="true"
            :auto-crop="options.autoCrop"
            :auto-crop-width="options.autoCropWidth"
            :auto-crop-height="options.autoCropHeight"
            :fixed-box="options.fixedBox"
            :output-type="options.outputType"
            @real-time="realTime"
          />
        </el-col>
        <el-col :xs="24" :md="12" :style="{ height: '350px' }">
          <div class="avatar-upload-preview">
            <img :src="options.previews.url" :style="options.previews.img" />
          </div>
        </el-col>
      </el-row>
      <br />
      <el-row>
        <el-col :lg="2" :md="2">
          <el-upload action="#" :show-file-list="false" :before-upload="beforeUpload">
            <el-button>
              选择
              <el-icon class="el-icon--right">
                <Upload />
              </el-icon>
            </el-button>
          </el-upload>
        </el-col>
        <el-col :lg="{ span: 1, offset: 2 }" :md="2">
          <el-button icon="Plus" @click="changeScale(1)"></el-button>
        </el-col>
        <el-col :lg="{ span: 1, offset: 1 }" :md="2">
          <el-button icon="Minus" @click="changeScale(-1)"></el-button>
        </el-col>
        <el-col :lg="{ span: 1, offset: 1 }" :md="2">
          <el-button icon="RefreshLeft" @click="rotateLeft()"></el-button>
        </el-col>
        <el-col :lg="{ span: 1, offset: 1 }" :md="2">
          <el-button icon="RefreshRight" @click="rotateRight()"></el-button>
        </el-col>
        <el-col :lg="{ span: 2, offset: 6 }" :md="2">
          <el-button type="primary" @click="uploadImg()">提 交</el-button>
        </el-col>
      </el-row>
    </el-dialog>
  </div>
</template>

<script setup lang="ts" name="userAvatarPage">
import "vue-cropper/dist/index.css";
import { VueCropper } from "vue-cropper";
import { uploadAvatar } from "@/api/system/user";
import userStore from "@/stores/user";
import { reactive, ref } from "vue";
import { ElMessage } from "element-plus";

const uStore = userStore();
// const { proxy } = getCurrentInstance();

const open = ref(false);
const visible = ref(false);
const title = ref("修改头像");
const cropperRef = ref();

//图片裁剪数据
const options = reactive({
  img: uStore.avatar, // 裁剪图片的地址
  autoCrop: true, // 是否默认生成截图框
  autoCropWidth: 200, // 默认生成截图框宽度
  autoCropHeight: 200, // 默认生成截图框高度
  fixedBox: true, // 固定截图框大小 不允许改变
  outputType: "png", // 默认生成截图为PNG格式
  filename: "avatar", // 文件名称
  previews: {
    url: "",
    img: "",
  }, //预览数据
  visible: false,
});

/** 编辑头像 */
function editCropper() {
  open.value = true;
}
/** 打开弹出层结束时的回调 */
function modalOpened() {
  visible.value = true;
}
/** 覆盖默认上传行为 */
// function requestUpload() {}
/** 向左旋转 */
function rotateLeft() {
  cropperRef.value.rotateLeft();
}
/** 向右旋转 */
function rotateRight() {
  cropperRef.value.rotateRight();
}
/** 图片缩放 */
function changeScale(num: number) {
  num = num || 1;
  cropperRef.value.changeScale(num);
}
/** 上传预处理 */
function beforeUpload(file: File) {
  if (file.type.indexOf("image/") == -1) {
    ElMessage.error("文件格式错误，请上传图片类型,如：JPG，PNG后缀的文件。");
  } else {
    const reader = new FileReader();
    reader.readAsDataURL(file);
    reader.onload = () => {
      options.img = typeof reader.result === "string" ? reader.result : "";
      options.filename = file.name;
    };
  }
}
/** 上传图片 */
function uploadImg() {
  cropperRef.value.getCropBlob((data: Blob) => {
    const formData = new FormData();
    formData.append("avatarfile", data, options.filename);
    uploadAvatar(formData).then((rsp) => {
      open.value = false;
      options.img = import.meta.env.VITE_APP_BASE_API + rsp.imgUrl;
      uStore.avatar = options.img;
      ElMessage.success("修改成功");
      visible.value = false;
    });
  });
}
/** 实时预览 */
function realTime(data: { url: string; img: string }) {
  options.previews = data;
}
/** 关闭窗口 */
function closeDialog() {
  options.img = uStore.avatar;
  options.visible = false;
}
</script>

<style lang="less" scoped>
.user-info-head {
  position: relative;
  display: inline-block;
  height: 120px;
}

.user-info-head:hover:after {
  content: "+";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  bottom: 0;
  color: #eee;
  background: rgba(0, 0, 0, 0.5);
  font-size: 24px;
  font-style: normal;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  cursor: pointer;
  line-height: 110px;
  border-radius: 50%;
}
</style>
